[1] He won the fight by a first-round knockout, stopping Kengo with a knee to the body at the 2:12 minute mark of the opening round.
[3] Takiya faced Takeshi Haraoka at AJKF Kick Return/Kickboxer of the best 60 Tournament Final on October 25, 2007.
[4] Takiya was booked to fight Kei Sakuchi at AJKF NEW Year Kick Festival 2008～70's Tournament Final～ on January 4, 2008.
He was awarded the automatic technical knockout victory in the second round, after successfully knocking Sakuchi down three times by the 1:46 minute mark.
He won the fight by a second-round technical knockout, as he successfully knocked Nasu three times by the 2:28 minute mark.
[12] After losing a majority decision to Ryuya Kusakabe at Krush×Survivor on March 13, 2010, Takiya was booked to face TARO at Krush-EX 2010 vol.2 on June 12, 2010.
He was booked to face Takumi Tosaka in the quarterfinals of the super bantamweight tournament, held on December 12, 2010.
Takiya knocked Tosaka out with a combination of a knee and front kick at the 2:16 minute mark of the second round.
Takiya was victorious in the rematch as well, winning their second meeting by unanimous decision, after an extra round was fought.
[16] After capturing his first professional title, Takiya was booked to face KO-ICHI in a non-title bout at Krush 11 on August 14, 2011.
[20] After successfully making his first title defense, Takiya was booked to face Reece Crooke in a non-title bout at Krush.18 on May 3, 2012.
[22] Takiya was next booked to face Mike Alamos in a non-title bout at Krush Grand Prix 2013 on January 14, 2013.
[23] Takiya vacated the Krush super bantamweight title on May 25, 2013 after moving to a non-K1 affiliated gym.
[24] Takiya faced Masahiro at Krush-IGNITION 2013 vol.5 on July 13, 2013, in his first fight after switching to the KSS Kenseikan gym.
Takiya rebounded from this loss by notching two straight unanimous decision victories, with the first being against Ryuma Tobe at Krush.32 on September 1, 2013 and the second against Satoru at Krush.34 on November 10, 2013.
[26] Takiya was booked to face Takumi Tosaka for the vacant Krush super bantamweight title, in a trilogy match held at Krush.37 on January 4, 2014.
Takiya won the first bout of the tournament by unanimous decision and advanced to the semifinals, where he faced the reigning Krush Featherweight champion Takeru Segawa.
[34] Takiya was booked to face Masayoshi Kunimoto at HOOST CUP～KINGS NAGOYA 3～ on September 3, 2017, following a 21 month absence from the sport.